| Bug #17711 | ORDER BY in DELETE forces filesort, even when applicable indexes exit | ||
|---|---|---|---|
| Submitted: | 24 Feb 2006 20:33 | Modified: | 8 Feb 2007 18:43 |
| Reporter: | Domas Mituzas | Email Updates: | |
| Status: | Closed | Impact on me: | |
| Category: | MySQL Server: Optimizer | Severity: | S5 (Performance) |
| Version: | 4.0, 5.1-beta | OS: | Linux (Linux) |
| Assigned to: | Evgeny Potemkin | CPU Architecture: | Any |
If the data you need to attach is more than 50MB, you should create a compressed archive of the data, split it to 50MB chunks, and upload each of them as a separate attachment.
To split a large file:
- On *nix platforms use the split command e.g.
split -b 50MB <my_large_archive> <my_split_archive_prefix> - On windows use WinZip or a similar utility to split the large file
